Section 3: Friction Belt Drives

Friction Belt Drives Section 3: Friction Belt Drives Fenner friction belt drives have set the standard for over 150 years and will continue to do so with the recent addition to the range with the Fenner Ultra PLUS 150 high strength wedge belt. State-of-the-art design and manufacture reflected in optimised power ratings, for compact size, economy efficiency and extended life PB (Precision Built) construction allows 'one-shot tensioning' for fit and forget applications. Fullest range of international standard belt lengths and pulleys available. All belts have superior anti-static, heat and oil resistant properties Friction Belt Drives: Design Data Required Type of prime mover, or driving machine Electric motor starting arrangement Rotational speed of prime mover Power rating of prime mover Type of driven machine Rotational speed of driven machine Power absorbed by driven machine Hours/day duty & start/stop frequency Both driven & driver machine shaft diameters Centre distance & space restraints: Any environmental issues: Visit www.fptgroup.com for the Drive Design Assistant > fixed centres? > adjustment? > ambient temperature > water, oil mist, solvents etc. Friction Belt Drives Page Classic PB V Belts 35 Ultra PLUS & Ultra PLUS 150 Wedge Belts 36 CRE PLUS & Quattro PLUS PB Wedge Belts 37 Wedge Belt Drive Selection 3 Centre Distances Wedge Belt Drives 40 Power Ratings Ultra PLUS 150 wedge Belts 52 Power Ratings Quattro PLUS wedge Belts 54 Power Ratings CRE Wedge Belts 56 Power Ratings, SPZ, SPB, SPA, SPC 5 Additional Power Ratings 60 Taper Lock Pulleys 62 PowerTwist PLUS 72 Adjustable Pitch Pulleys & Bi-Loc Pulleys 74 Urethane Belting 75 Wedge & V-Belt Tensioning Instructions 76 Installation & Operation, Wedge & V-Belts 77 PowerTwist PLUS Installation & Tensioning 7 PolyDrive PLUS Belts 79 Accessories 5

Fenner Ultra Plus 150 The new generation of heavy duty drive belt for the harshest of environments... 50% more power High Tensile Aramid Cords transmit 50% more power than standard wrapped wedge belts. Unsurpassed strength Fibre reinforced polychloroprene rubber supports the cords and ensures unsurpassed rigidity when installed. fenner s Ultra Plus 150 drive belts are specifically designed for applications where rugged durability is paramount, combining the highest level of performance with the longest service life possible. 96% energy efficiency A-symmetrical weave outer jacket produces belt length stability second to none, guaranteeing unbeatable efficiency. Energy Efficient State of the art, high efficiency drive belt engineering www.fptgroup.com ideal for heavy duty applications : > Waste compactors > Shredders > Crushers > Heavy duty conveyors > Bucket elevators > Woodworking machinery > Quarry plant > Saw mills > Calendars > Compressors Fenner is a registered trade mark of J. H. Fenner & Co. The Mark of engineering excellence 34

Friction Belt Drives Fenner Classic PB V-Belts SPZ SP A SPZ ISO 414 SPZ DIN 2215 BS 3790 - RMA SP IP20 A SPB SPC 16 Fenner SP A Classic V-Belts have SPB specially treated jackets to give 16 superior anti-static, heat and oilresistant properties. 22 22 SPC All Fenner Classic V-Belts are static conductive to ISO 1 and conform to the anti-static specifications of the American SPB Petroleum Institute (API). SPC 1 1 25 25 V V V32 23 23 6 Z/ 6 Belt Designation Metric Z370 Z395 Z4 Z420 Z445 Z470 Z40 Z495 QXPZ Z5 Z520 Z530 Z/ Z545 Z560 Z570 Z600 Z6 Z620 Z630 Z650 Z660 Z700 Z725 Z750 Z70 Z00 Z20 Z40 Z50 Z60 Z75 Z90 Z900 Z920 Z930 Z940 SPZ SP A Z950 Z965 Z90 Z990 Z15 Z35 Z55 Z0 Z15 Z10 Z1155 Z1205 Z1270 Z30 Z0 Z1420 Z1750 Z/ QXPZ 6 A/ Belt Designation Metric Imperial A540 A20 A570 A21 A590 A22 A620 A23 QXPZ A640 A24 A670 A25 A700 A26 A720 A27 6 Z A QXPA A740 A2 A770 A29 A790 A30 A20 A31 A50 A/ A32 A70 A33 A90 A34 A920Z/ A35 A930 A950 A36 A970 A37 A990 A3 A20 A39 A50 A40 A70 A41 A10 A42 A10 QXPZ QXPA A43 A1150 A44 A110 A45 A1200 A/ A46 A1230 A47 A1250 A4 A120 A49 A00 A50 A30 A51 A60 A52 A0 A53 A14 A54 A1430 A55 A1460 A56 A140 A57 QXPA A15 A5 A1530 A59 A1550 A60 A150 A61 A16 A62 A1640 A63 A1660 16 A64 A1690 A65 A17 A66 A1740 A67 A1760 A6 A1790 A69 SP A1 A SPB A70 A140 A71 A160 A72 A190 A73 A1920 A74 A1940 A75 A1960 A76 A1990 A77 A2020 A7 A2050 A79 A2070 A0 A2090 A1 A2120 A2 A2140 A3 A2170 A4 A2200 A5 A2220 A6 A2240 17 A7 A2270 A A2300 A9 A2320 A90 A2350 A91 A2370 A92 B/17 A2400 A93 A2420 A94 A2450 A95 A240 A96 A2500 A97 A2570 A0 A2630 16 A2 A2650 A3 A260 A4 A2700 A5 A2750 A7 A270 A A/ QXPA QXPB 11 Section dimensions in millimetres. Metric designations show pitch length in millimetres. Imperial designations show inside length (Li) inches. 6 A230 A20 A29 A2960 A290 A300 A3190 A/ A3290 A3440 A3490 A3540 A3690 A3950 QXPA 17 A1 A112 A1 A115 B/17 A116 A120 A124 A12 A4 A6 A 16 A144 A154 17 QXPB B B/17 Belt Designation Metric Imperial B700 B26 B750 B2 B00 B30 B30 16 B31 B60 B32 B0 B33 B9 B34 B930 B35 B960 B36 B90 QXPB B37 B00 B3 B30 B39 B60 B40 B0 B41 B10 B42 B10 B43 B1160 16 B44 B110 B45 B12 B46 B1240 B47 B1260 B4 SPB B1290 B49 B B50 B40 B51 B70 B52 B90 B53 B14 B54 B1440 B55 B1460 B56 B1490 B57 B15 B5 B1540 B59 B1560 B60 B1590 B61 B1620 B62 B1640 B63 B1670 B64 17 B1690 B65 B1720 B66 B1740 B67 B1760 B6 B/17 B100 B69 B120 B70 B150 B71 B170 B72 B1900 B73 B1920 B74 16 B1950 B75 B1970 B76 B2000 22 B77 B2020 B7 B2050 B79 QXPB B2070 B0 B20 B1 B20 B2 B2150 B3 11 11 QXPC B210 B2200 B2230 17 B2250 B220 B2300 B2330 B/17 B2350 B230 B2400 B2420 B2450 16 B240 B2500 B2530 B250 QXPB B2630 B2660 B260 B2700 B2740 B2790 B240 B270 B290 B2940 B2990 B3040 B3090 B3140 B3200 B3240 B3290 B3350 B3400 22 B3450 B3500 B3550 B3600 B3700 B300 B350 B370 SPC B3900 B3950 B4060 B4160 B43 B4430 B46 B4740 B5000 B5220 B5370 B550 B5630 B6070 11 B4 B5 B6 B7 B B9 B90 B91 B92 B93 22 B94 B9522 B96 22 B97 B9 B0 QXPC B2 QXPC B3 B4 B5 B6 B B1 B111 22 B112 B114 B116 B11 B120 B122 B124 B126 B12 B0 B2 B4 B6 22 B B140 B144 B14 B150 B151 SPC B152 B154 B15 B162 B16 B173 B10 B15 B195 B204 B2 B21 B220 B23 22 Belt Designation C/22 Metric Imperial C00 C49 22 C50 C51 C1450 C55 C140 C56 C1530 C5 C1560 C59 C150 C60 QXPC C1650 C63 C1700 C65 C1760 C67 C170 C6 1 C130 C70 C160 C71 22 C10 C72 C1950 C75 C20 C77 C2040 C7 C2090 C0 C/22 C21 C1 C2160 C3 C2190 C4 C2200 C5 C2270 C7 C2340 C90 C2420 C93 C2440 C94 C2490 C96 C2520 C97 C2550 C9 C2600 C0 C2650 C2 C2700 C4 C2720 C5 C200 C C250 C1 C20 C111 C2900 C112 C2950 C114 C3000 C116 C300 C119 C30 C120 C32 C124 C33 C12 C3360 C0 C3460 C4 C3520 C6 C3560 C C36 C140 C3660 C142 C37 C144 C3760 C146 C370 C150 C3920 C152 C3970 C154 C4060 C15 C4170 C162 C4220 C164 C4320 C16 C4450 C173 C4500 C175 C4600 C179 C4630 C10 C4750 C15 C470 C16 C40 C190 C50 C195 C5140 C200 C5240 C204 C530 C2 C5640 C220 C5720 C223 C550 C22 C60 C23 C6150 C240 C6360 C24 C66 C25 C6660 C260 C660 C26 C69 C270 C7120 C27* C7600 C297* C7620 C29* C030 C314* C390 C32* C90 C356* C9150 C35* C9760 C32* C670 C41* C700 C419* C130 C444* Belt Designation Metric 32 Imperial D2740 D5 D30 D120 D3330 D12 D3730 D144 D400 D15 D4190 D162 D4470 D173 D4620 D179 D4650 D/32 D10 D5030 D195 D5260 D204 D5400 D2 D5790 D225 D570 D22 D60 D237 D6120 D23 D6170 D240 D640 D266 D690 D26 D6940 D270 D7620 D297 D7650 D29 D7700 D300* D050 D314* 25 D4 D32* D9140 D357* D9170 D35* D930 D34* D990 D390* D700 D41* D12200 D47* D700 D53* * These lengths may not be available from stock. Consult your local Authorised Distributor for non-listed belt lengths. Mass Per Unit Length kg/m Belt Section Standard Belt Z 0.055 A 0.094 B 0.163 C 0.24 D 0.560 DATA FOR ALL VEE BELTS Metric belt designation denotes 32 pitch length in mm Z: Li = Lp - 26 mm A: Li = Lp - 34 mm B: Li = Lp - 45 mm C: Li = Lp - 5 mm D: Li = Lp 20-5 mm Li: = inside length Lp: = pitch length FEN01/12 : Drive Design & Maintenance Manual 35 22 11 QXPC 1 1 14 C C/22 1 1 14 1 C/22 22 C/22 1 14 14 14 25 V 32 D/32 V 23 23 32 D D/32 20 D/32 PRODUCT CODES D/32 digit for standard vee-belts Digits 1-3 Constant 240 Digit 4 Section letter Z, A, B, C, D (V) Digits 5 to : 0 then first three of 4-figure lengths or, first 4 of 5-figure lengths For example: C700 is coded 240C70 20 WORKING TEMPERATURES Fenner V-belts perform satisfactorily within the ambient temperature range 40 to 70 C. 20 20

Friction Belt Drives Fenner Ultra PLUS & Ultra PLUS 150 PB Wedge Belts ISO 414 DIN 7753 BS 3790 - RMA IP22 In addition to their precision-built qualities, Fenner Ultra PLUS wedge belts have superior anti-static and oil-resistant properties. All Fenner Ultra PLUS and Ultra PLUS 150 wedge belts are static conductive to the ISO 1 standard and conform to the anti-static specifications of the American Petroleum Institute (API) for similar belts. They will not readily self-ignite under severe slip/stall conditions, subject to maximum surface temperature limitations. 16 16 22 16 1 16 22 1 25 22 22 1 23 1 25 23 2 Belt Designation SPZ Belt Designation SPZ SP A SPZ Belt SP Designation SPZ A SPB SP A SPB A Belt SPC Designation SPB SPB SPC SPC VBelt SPC Designation V SPZ SPA SPB USPB SPC USPC Metric Imperial 3V Metric Imperial 3V Metric Imperial 5V Metric Imperial 5V 47-1400 - 732 1750 1250-1600 630 2000 2650 512-1412 - 757 1757 1260 5V500 100 7 2120 200 562-1420 560 72 172 20-1900 - 2240 3000 57-1437 - 00 100 40 530 2000-2360 3150 612-1462 - 07 107 1400-2120 - 2500 3350 630 3V250 1470 50 25 132 14 560 2240-2650 3550 637-147 - 32 150 1500-2360 - 200 3750 662-1500 - 50 157 1550-2500 - 3000 4000 32 670-1512 - 57 12 1600 630 2650-3150 425032 3 67-1520 600 75 1900 1670-22 200-3350 4500 22 22 22 7 20 1537-2 1907 1700-3000 110 3550 4750 17 17 722-1560 617 900 1932 1750-17 3150 17-3750 20 5000 737-157 20-907 1950 100 7 3350-4000 5300 750-1600 630 925 1957 150-3550 - 4250 5600 760 300 1612-932 192 1900-3750 1500 4500 6000 Z/ 772-1637 Z/ A/ - Z/ 950 A/ Z/ B/17 2000 A/ B/17 1950 A/ C/22 - B/17 4000 B/17 C/22 - C/22 D/32 4750 C/22 6300 D/32 D 77-1650 650 957 2032 190-4060 1600 5000 6700 00 315 1662-975 2057 2000-4250 - 5300 70 12-167 - 92 2060 2020 00 43 1700 5600 7500 22 25-1700 670 00 202 2060-22 4500 22-22 6000 000 16 37-1737 - 07 2120 2120 16-16 4750 16-6300 500 50-1762 - 30 22 2150 50 5000-6700 9000 62-177 - 60 210 2240-5300 - 70 9500 75-100 7 2 2207 220 900 5600-7500 7 - QXPZ 112 QXPZ QXPA - 90 QXPB 2232 2360 QXPC - 6000 2360 000 QXPZ QXPA QXPZ QXPA QXPB QXPA QXPB QXPC QXPB QXPC QXPC 900 355 137-17 2240 24 950 6300-500 912-150 730 1120 222 2450-6700 - 9000 925-162 - 12 2300 2500-70 200 9500 940 370 17-1150 2307 2530 00 7500-000 950-1900 750 1157 2332 250-00 - 600 962-1937 - 110 2360 2650-11200 97-197 00 1207 232 260 60 1100 00-2000 - 1220 2430 2720-12500 400 2030-1232 242 200-25 24-2037 - 1250 2500 240 1120 22 37-2120 - 1257 2532 16 2900-47 - 27-1272 250 3000 110 60-2160 50 120 2607 3150-0 425 217-07 2632 3170 1250 7-2240 - 20 2650 3250 20 1112 - SPZ 2262 - SP A 32 262 SPB 3350 - SPC V 1120-220 900 57 2720 3450 1400 Belt Designation 1140 450 227-60 2732 3550 - V 1162-2360 - 2 272 3750 1500 Metric Imperial V 110-24 950 1400 200 300-2540 00 117-2500 - 1407 232 370-240 1120 1200 475 2540 00 1432 247 4000-310 1250 1212-2650 - 1450 22 4060 1600 3550 1400 1237-2690 60 1457 2900 4250-3 1500 1250-200 - 142 2932 43 1700 4060 1600 1262-240 1120 1500 292 4500-4570 100 1270 500 3000 110 1507 3000 4560 100 500 32 2000 127-3150 - 1532 3032 4750-5690 2240 12-3170 1250 1550 302 420 1900 22 6350 2500 20-3350 - 1557 3150 17 5000-70 200 40 530 3550 1400 152 312 5070 2000 000 3150 20 47-1600 322 5300-9000 3550 62-1607 3350 530 2120 160 4000 7 - Z/ A/ 1632 332 B/17 5600 - C/22 11430 D/32 4500 1650 3550 560 2240 Section dimensions in millimetres. Italic type denotes not held in stock at all 1657 3750 6000 2360 locations. Bold type denotes standrad sizes in ISO 414. 162 4000 6300-1700 4250 6340 2500 Metric designations show pitch length in mm. Imperial designations show 22 effective length in 1/ inches 1707 4500 16 6700-1732 70 200 Note: The ISO 414 standard now refers to datum lengths, which are 7500 - essentially the same as pitch lengths. 9000 3150 6 6 6 6 6 11 11 11 1 1 14 11 1 1 14 11 14 1 1 14 14 23 QXPZ QXPA QXPB QXPC 36

Friction Belt Drives Fenner CRE PLUS, Quattro PLUS CRE Wedge Belts ISO 414 DIN 7753 BS 3790 Z/ Z/ Z/ Z/ A/ A/ A/ Fenner cogged raw edge wedge belts are precision built for excellent length matching. They are manufactured 22 22 22 22 17 17 17 from high quality polymer 17 and textile materials for superior heat and oil resistance. All Fenner CRE PLUS and Quattro 6 6 6 6 11 11 11 11 PLUS cogged raw edge wedge belts are static conductive limitations. A/ B/17 B/17 B/17 B/17 C/22 C/22 C/22 C/22 14 14 14 32 32 32 to the ISO 1 standard and conform 32 to the anti-static specifications of the American Petroleum Institute (API) for similar belts. They will not ignite 20 under 20 severe 20 slip/ 20 stall conditions, subject to maximum surface temperature 14 D/32 D/32 D/32 D/32 QXPZ QXPZ QXPZ QXPZ QXPA QXPA QXPA QXPA QXPB QXPB QXPB QXPB QXPC QXPC QXPC QXPC Belt Designation Belt Designation Belt Designation Belt Designation XPZ QXPZ XPA QXPA XPB QXPB XPC QXPC 630 630 00 00 1250 1250 2000 2000 670 670 50 50 1260 2120 2120 7 7 900 900 20 20 2240 2240 750 750 925 40 2360 2360 760 950 950 1400 1400 2500 2500 00 00 00 00 14 2650 2650 50 50 30 1500 1500 200 200 900 900 60 60 1600 1600 3000 3000 937 90 1700 1700 3150 3150 940 1120 1120 100 100 3350 3350 950 950 110 110 1900 1900 3550 3550 00 00 1207 2000 2000 3750 3750 1250 1250 2020 4000 4000 60 60 120 2120 2120 4060 4060 77 20 20 2150 4250 4250 0 2 2240 2240 43 43 1120 1120 1400 1400 220 4500 4500 17 1450 1450 2360 2360 4750 4750 1140 1500 1500 24 5000 5000 1150 1532 2500 2500 110 110 1550 1550 2530 1200 1600 1600 2650 2650 1220 1650 1650 260 1250 1250 1700 1700 200 200 1270 1750 1750 240 127 100 100 3000 3000 20 20 150 150 3150 3150 37 1900 1900 3350 3350 40 1950 1950 3550 3550 60 2000 2000 3750 1400 1400 2060 2060 4000 1420 2120 2120 4060 1450 2240 2240 4250 1462 2360 2360 43 1470 2430 4500 1500 1500 2500 2500 1520 2650 2650 1537 200 200 PRODUCT CODES 1550 3000 3000 digit for standard vee-belts 1560 3150 3150 157 3350 Digits 1-3 1600 1600 3550 3550 Product Group 260 Ultra PLUS 1650 4000 267 CRE PLUS 1700 1700 26 Ultra PLUS 150 100 100 269 Quattro PLUS 150 1900 1900 Digit 4 2000 2000 Section Letter (USP, SP, XP, QXP) Z, A, B, C, 2040 2120 2120 Digits 5 to : D (V) 2160 2240 2240 Length 0 then first three of 4-figure lengths or, first 4 of 5-figure 220 lengths 2360 For example: 24 Ultra PLUS SPB200 is coded 2500 2500 260B020 2540 2650 2690 Quattro PLUS QXPZ 1250 is coded 269Z0125 200 200 240 3000 3150 3150 3350 3550 3550 16 16 16 16 22 22 22 1 1 22 1 1 DATA FOR ALL WEDGE BELTS Metric belt designation denotes pitch length in mm. SPZ: Lo = Lp + mm SPA: Lo = Lp + 1mm SPB: Lo = Lp + 22mm SPC: Lo = Lp + 30mm Lp = Pitch length Lo = Outside length PITCH LENGTH Lp = Li + mm (Inside length) Belt Section Wrapped Belt CRE Belt Quattro PLUS Ultra PLUS 150 SPZ 37 3 30 - SPA 45 44 40 - SPB 60 5 60 60 SPC 90-0 90 V 120 - - - MASS PER UNIT LENGTH kg/m Belt Section Wrapped Belt CRE Belt Quattro PLUS Ultra PLUS 150 SPZ 0.07 0.06 0.07 - SPA 0.12 0.11 0.12 - SPB 0.19 0.1 0.19 0.23 SPC 0.32-0.36 0.3 V 0.54 - - - WORKING TEMPERATURES Fenner Ultra PLUS and CRE PLUS wedge belts perform satisfactorily within the temperature range -40 to +70 C Quattro PLUS temperature range -40 to +0 C Ultra PLUS 150 temperature range -40 to +0 C Metric designations are pitch lengths in mm. Imperial belt designation denotes approximate effective length in tenths of an inch in accordance with RMA standards. Note: The ISO 414 standard now refers to datum lengths, which are essentially the same as pitch lengths. For similar cross sections, other designations include SPZ, Alpha, 3V & 9N SPB, Beta, 5V & 15N V, Delta, & 25N SPZ, SPA, SPB & SPC belt designations shown in heavier type identify standard sizes in ISO 414. Belt lengths in italic type are available but not ex stock in all locations. Consult your Authorised Distributor for non-listed belt lengths. FEN01/12 FEN01/ : Drive Design & Maintenance Manual 37

FRICTION BELT drives Wedge Belt Drive Selection SELECTION (a) Service Factor Calculate Ratio by dividing the rev/min of the faster shaft by the rev/min of the slower shaft. (b) Service Factor From Table 3 (page 39), select the Service Factor which is applicable to the drive. If the drive is speed increasing, an additional factor may be required refer to top of Table 3. (c) Design Power Multiply the normal running power or prime mover power by the Service Factor. This gives the Design Power which is used as the basis for selecting the drive. (d) Belt Section & Type Refer to Table 2 (opposite) and trace to the right along the horizontal axis to the rev/min of the faster shaft. Trace upwards along the vertical axis to the Design Power. Choose the belt section and type represented by the area in which the point of intersection falls. (e) Minimum Pulley Diameter Refer to Table 1 (below) and select the minimum recommended pulley, using the Design Power from step (c) and the faster shaft speed. This is a guide to the minimum pulley pitch diameter capable of transmitting the design power at the given speed,without generating excessive bearing loads. (f) Pulley Pitch Diameters Refer to the drive selection tables on pages 40 to 51 and for the belt section chosen read down the speed ratio column to the value nearest the calculated speed ratio. Use the Minimum Pulley Diameter from step (e) as a guide to the small pulley selection. (g) Belt Length, Centre Distance and Correction Factor The drive tables list ISO belt lengths. Along the same line as the chosen Ratio read across the table to find a suitable Centre Distance. The required Belt Length is given at the head of the column. Note the Correction Factor by following the colour band in which the chosen centre distance falls, to the top of the table. If the Centre Distance is not specified consider a drive with a centre distance approximately equal to the sum of the pulley pitch diameters. When non-standard pulleys or belts are used the Centre Distance and Belt Length can be calculated using the formulae given on page iii of the technical information section. Interpolate from the tables for the Correction Factor. (h) Basic Power per Belt Refer to the power rating tables (pages 52 to 61) for the section and type of wedge belt chosen. In the left-hand column locate rev/min of the faster shaft, i.e. the one with the small pulley. Read across to the column headed by the pitch diameter of the small pulley and note the rated power. For CRE Plus belts refer to page 56 for power ratings. Note that Fenner pulleys are designed for belt speeds up to 40 m/s. If using non-fenner pulleys seek manufacturer's approval at high speeds. TABLE 1 3 of faster shaft rev/min up to 1 N.B. The powers listed in the columns headed by the motor speeds in the Drive Tables (pages 40 to 51) give the power per belt including Ratio Increment, step (j), for Ultra PLUS wedge belts. These powers require correcting for belt length and arc of contact correction factor (g) and should be used in conjunction with the appropriate Service Factor. (j) Ratio Power Increment From the power rating tables (pages 52 to 59) note the additional power per belt for the Ratio being used. This value is the same for all types of belt of a given section. (k) Corrected Power per Belt Add the Ratio Power increment (j) to the Basic Power per Belt (h) and multiply by the Correction Factor from step (g). (l) Number of Belts required Divide the Design Power from step (c) by the Corrected Power per Belt (k). The result gives the number of belts required. If the answer contains a fraction use the next whole number. (m) Bore sizes Check that the pulleys will fit shafts by referring to the pulley dimension tables (pages 62 to 69). TABLE 2 *Minimum Pulley Diameter 3 (mm) Design Power (kw) 2 3.0 4.0 5.0 7.5 15 20 25 30 40 50 60 75 90 1 0 150 200 250 500 56 90 0 112 125 140 10 200 212 236 1250 20 20 315 375 400 450 475 500 560 600 56 5 90 0 112 125 140 10 200 212 224 250 265 20 300 335 375 400 475 500 720 56 0 5 90 0 6 2 150 160 170 200 236 250 265 20 300 335 375 450 500 960 56 75 0 5 95 0 112 2 150 10 10 200 224 250 20 20 300 335 400 450 1200 56 71 0 0 95 95 6 11 2 150 160 10 200 236 236 250 265 300 335 355 1440 56 63 75 0 5 5 0 112 125 140 160 170 190 212 236 236 250 20 315 335 100 56 63 71 75 0 5 95 6 112 125 150 160 170 190 212 224 236 265 300 335 20 56 60 67 67 0 0 5 90 0 112 125 140 160 170 10 212 224 236 * This table is intended as a guide to selection only. Bearing loads should be carefully considered when using small pulleys on electric motors. This is particularly important when using the small pulleys allowable with CRE PLUS or Quattro PLUS belts. DESIGN POWER kw 00 00 600 500 400 300 200 0 0 60 50 40 30 20 6 5 4 0 1,000 200 300 400 QXPC & USPC 500 600 SPC QXPB & USPB 00 SPB REV/MIN OF FASTER SHAFT QXPA 2,000 QXPC only SPA QXPZ SPZ 3,000 QXPB only 4,000 5,000 6,000

chain drives Wedge Belt Drive Selection EXAMPLE Design a wedge belt drive from a 50 kw 6 cylinder diesel engine which runs at 50 rev/min to a reciprocating compressor running at 660 rev/min. The centre distance is to be approximately 1600 mm and the duty is 24 hours/day. The engine shaft is 70 mm diameter and the compressor shaft 0 mm diameter. (a) Ratio ratio = 50 = 1.59:1 660 (b) Service Factor From Table 3 the service factor is 1.4. (c) Design Power = 50 x 1.4 = 70 kw (d) Belt Section By referring to Table 2 (opposite) the intersection of design power and the speed of the faster shaft indicates SPB or QXPB section. (e) Minimum Pulley From Table 1 (page 3) the minimum recommended pulley is approximately 250 mm. (f) Pulley Pitch Diameters By referring to the centre distance tables relating to SPB section belts on page 47 the selection is a driving pulley of 315 mm pitch diameter and a driven pulley of 500 mm pitch diameter. (g) Belt Length, Centre Distance and Correction Factor Reading across the table, the nearest centre distance to the 1600 mm required is 1607 mm. The belt length at the head of the column is 4500. By following the colour shading to the top of the table, a correction factor of 1.05 is noted. (h) Basic Power per Belt From the power rating table (pages 52 & 61) by interpolation the rated power/belt for a 315 mm pitch diameter pulley at 50 rev/min is 1.94kW for Ultra PLUS SPB (22.37 for Quattro PLUS QXPB) (j) Ratio Power Increment The power increment (by interpolation) for a speed ratio of 1.59 at 50 rev/min is 0.77 kw. (pages 5) (k) Corrected Power per Belt = (1.94 + 0.77) x 1.05 = 20.7 kw per belt. (24.3 for QXPB) (l) Number of Belts required = 70 = 3.3 i.e use 4 SPB Ultra PLUS wedge belts. 20.7 or = 70 = 2. i.e use 3 QXPB Quattro PLUS belts. 24.3 (m) Bore Sizes From pulley dimension tables, a 315mm x 4 SPB has a bush size 3525 with 0 mm max. bore (315 mm x 3 SPB has a bush size 3020 with 75 mm max. bore). Either will fit the 70 mm dia. engine shaft. 500 mm x 3 or 4 SPB pulleys, both of which have a bush size 3525, will fit the 0 mm dia. compressor shaft. DRIVE SPECIFICATION Ultra PLUS SPB Quattro PLUS QXPB Engine pulley 315 x 4SPB 315 x 3 SPB Taper Lock bush 3525/70 mm 3020/70mm Compressor pulley 500 x 4SPB 500 x 3SPB Taper Lock bush 3525/0 mm 3525/0mm 4 x SPB 4500 wedge belts give 1607 mm centres. 3 x QXPB 4500 wedge belts give 1607 mm centres. TABLE 3: SERVICE FACTORS SPEED INCREASE RATIO For speed increasing drives of: ratio 1.00 1.24 multiply service factor by 1.00 ratio 1.25 1.74 multiply service factor by 1.05 ratio 1.75 2.49 multiply service factor by 1.11 ratio 2.50 3.49 multiply service factor by 1.1 ratio 3.50 and over multiply service factor by 1.25 TYPES OF DRIVEN MACHINE 'Soft' Starts Electric motors: AC - Star Delta start DC - Shunt wound Internal combustion engines with 4 or more cylinders Prime movers fitted with centrifugal clutches, dry or fluid couplings or electronic soft start devices Types of Prime Mover Hours per day 'Heavy' Series Electric motors: AC - Direct-on-line start DC - Series and component wound Internal combustion engines with less than 4 cylinders Prime movers not fitted with soft start devices and under Over to 16 Over 16 and under Over to 16 Over 16 Class 1 Light Duty Agitators (uniform density), blowers, exhausters and fans up to 7.5kW, centrifugal compressors and pumps. Belt conveyors (uniformly loaded). 1.0 1.1 1.2 1.1 1.2 1.3 Class 2 Medium Duty Class 3 Heavy Duty Agitators and mixers (variable density), blowers, exhausters an fans (over 7.5kW). Rotary compressors and pumps (other than centrifugal). Belt conveyors (not uniformly loaded), generators and excitors, laundry machinery, lineshafts, machine tools, printing machinery, sawmill and woodworking machinery, screens (rotary) Brick machinery, bucket elevators, compressors and pumps (reciprocating), conveyors (heavy duty). Hoists, mills (hammer), pulverisers, punches, presses, shears, quarry plant, rubber machinery, screens (vibrating), textile machinery. 1.1 1.2 1.3 1.2 1.3 1.4 1.2 1.3 1.4 1.4 1.5 1.6 Class 4 Extra Heavy Duty Crushers (gyratory-jaw roll), mills (ball-rod-tube) 1.3 1.4 1.5 1.5 1.6 1. FEN01/14 : Drive Design & Maintenance Manual 39

FRICTION BELT drives Centre Distance SPZ, XPZ &QXPZ Wedge Belt Drives Combined Arc and Belt Length Correction Factor Ratio 40 Pitch Diameter of Pulleys Driver Driven Power per SPZ Belt (kw) 1440 rev/min 20 rev/min 0.0 0.5 0.90 0.95 1.00 1.05 1. 1.15 BELT LENGTH SPZ & QXPZ ONLY 630 7 00 900 00 1120 1250 1400 1600 100 2000 2240 2500 200 3150 3550 1.00 56 56 0.93 1.56 227 267 312 362 412 472 1.00 1.00 60 60 1.11 1.90 221 261 306 356 406 466 1.00 1.00 63 63 1.06 1.77 216 256 301 351 401 461 526 601 701 01 901 21 1151 01 1476 1676 1.00 1.00 67 67 1.24 2.11 2 250 295 345 395 455 520 595 695 795 95 15 1145 1295 1470 1670 1.00 1.00 71 71 1.42 2.44 203 243 2 33 3 44 5 5 6 7 0 1 12 1463 1663 1.00 1.00 75 75 1.60 2.77 197 237 22 332 32 442 507 52 62 72 2 02 12 122 1457 1657 1.00 1.00 0 0 1.2 3.1 19 229 274 324 374 434 499 574 674 774 74 994 1124 1274 1449 1649 1.00 1.00 5 5 2.04 3.5 11 221 266 316 366 426 491 566 666 766 66 96 1116 1266 1441 1641 1.00 1.00 90 90 2.26 3.9 174 214 259 309 359 419 44 559 659 759 59 979 19 1259 1434 1634 1.00 1.00 95 95 2.4 4.3 166 206 251 301 351 411 476 551 651 751 51 971 11 1251 1426 1626 1.00 1.00 0 0 2.70 4.77 15 19 243 293 343 403 45 543 643 743 43 963 93 1243 141 161 1.00 1.00 112 112 3.22 5.69 9 179 224 274 324 34 449 524 624 724 24 944 74 1224 99 1599 1.00 1.00 125 125 3.77 6.65 159 204 254 304 364 429 504 604 704 04 924 54 1204 79 1579 1.00 1.00 140 140 4.40 7.72 10 230 20 340 405 40 50 60 70 900 30 110 55 1555 1.00 1.05 60 63 1.14 1.94 21 25 303 353 403 463 1.05 1.05 95 0 2.50 4.42 162 202 247 297 347 407 472 547 647 747 47 967 97 1247 1422 1622 1.05 1.06 90 95 2.31 4.09 170 2 255 305 355 415 40 555 655 755 55 975 15 1255 1430 1630 1.06 1.06 71 75 1.47 2.54 200 240 25 335 35 445 5 55 65 75 5 05 15 125 1460 1660 1.06 1.06 5 90 2.09 3.69 17 21 263 3 363 423 4 563 663 763 63 93 11 1263 143 163 1.06 1.06 67 71 1.29 2.21 207 247 292 342 392 452 517 592 692 792 92 12 1142 1292 1467 1667 1.06 1.06 0 5 1.7 3.2 15 225 270 320 370 430 495 570 670 770 70 990 1120 1270 1445 1645 1.06 1.06 63 67 1.11 1. 2 253 29 34 39 45 523 59 69 79 9 1 114 129 1473 1673 1.06 1.07 75 0 1.65 2.7 193 233 27 32 37 43 503 57 67 77 7 99 112 127 1453 1653 1.07 1.07 56 60 0.9 1.67 224 264 309 359 409 469 1.07 1.11 90 0 2.31 4.09 166 206 251 301 351 411 476 551 651 751 51 971 11 1251 1426 1626 1.11 1.12 112 125 3.31 5.7 169 214 264 314 374 439 514 614 714 14 934 64 1214 9 159 1.12 1.12 60 67 1.20 2.09 215 255 300 350 400 460 1.12 1.12 5 95 2. 3.77 174 214 259 309 359 419 44 559 659 759 59 979 19 1259 1434 1634 1.12 1.12 67 75 1.33 2.29 203 243 2 33 3 44 5 5 6 7 0 1 12 1463 1663 1.12 1.12 0 112 2.79 4.95 14 1 233 23 333 393 45 533 633 733 33 953 3 1233 140 160 1.12 1.12 125 140 3.6 6.4 192 242 292 352 417 492 592 692 792 912 42 1192 67 1567 1.12 1. 56 63 1.02 1.74 222 262 307 357 407 467 1. 1. 0 90 1.91 3.36 11 221 266 316 366 426 491 566 666 766 66 96 1116 1266 1441 1641 1. 1. 71 0 1.51 2.62 196 236 21 331 31 441 506 51 61 71 1 01 11 121 1456 1656 1. 1. 63 71 1.15 1.95 2 250 295 345 395 455 520 595 695 795 95 15 1145 1295 1470 1670 1. 1. 75 5 1.69 2.95 19 229 274 324 374 434 499 574 674 774 74 994 1124 1274 1449 1649 1. 1.14 140 160 4.49 7.91 214 264 324 39 464 564 664 764 4 14 1164 39 1539 1.14 1.1 5 0 2. 3.77 170 2 255 305 355 415 40 555 655 755 55 975 15 1255 1430 1630 1.1 1.1 95 112 2.57 4.56 152 192 237 27 337 397 462 537 637 737 37 957 7 1237 1412 1612 1.1 1.1 60 71 1.24 2.15 212 252 297 347 397 457 1.1 1.19 0 95 1.95 3.43 177 217 262 312 362 422 47 563 663 763 63 93 11 1263 143 163 1.19 1.19 63 75 1.1 2.02 207 247 292 342 392 452 517 592 692 792 92 12 1142 1292 1467 1667 1.19 1.19 67 0 1.37 2.36 199 239 24 334 34 444 5 55 65 75 5 05 15 125 1460 1660 1.19 1.20 56 67 1.06 1.1 21 25 303 353 403 463 1.20 1.20 71 5 1.54 2.69 192 232 277 327 377 437 502 577 677 777 77 997 1127 1277 1452 1652 1.20 1.20 75 90 1.72 3.02 15 225 270 320 370 430 495 570 670 770 70 990 1120 1270 1445 1645 1.20 1.24 90 112 2.39 4.23 156 196 241 291 341 401 466 541 641 741 41 961 91 1241 1416 1616 1.24 1.25 60 75 1.24 2.15 209 249 294 344 394 454 1.25 1.25 0 0 1.95 3.43 173 2 25 30 35 419 44 559 659 759 59 979 19 1259 1434 1634 1.25 1.25 0 125 2.2 5.02 17 223 273 323 33 44 523 623 723 23 943 73 1223 9 159 1.25 1.25 112 140 3.34 5.94 156 202 252 302 362 427 502 602 702 02 922 52 1202 77 1577 1.25 1.27 75 95 1.75 3.07 11 221 266 316 366 426 491 566 666 766 66 96 1116 1266 1441 1641 1.27 1.27 71 90 1.57 2.74 1 22 273 323 373 433 49 573 673 773 73 994 1124 1274 1449 1649 1.27 1.27 56 71 1.0 1.6 215 255 300 350 400 460 1.27 1.27 67 5 1.39 2.41 195 235 20 330 31 441 506 51 61 71 1 01 11 121 1456 1656 1.27 1.27 63 0 1.21 2.07 203 243 2 33 3 44 5 5 6 7 0 1 12 1463 1663 1.27 1.2 125 160 3.92 6.96 175 225 276 336 401 476 576 676 776 96 26 1176 51 1551 1.2 1.29 140 10 4.55.03 19 24 30 373 44 54 64 74 6 99 114 24 1524 1.29 1.32 95 125 2.63 4.6 141 12 227 277 327 37 452 527 627 727 27 947 77 1227 1402 1602 1.32 1.32 5 112 2.19 3.9 160 200 245 295 345 405 470 545 645 745 45 965 95 1245 1420 1620 1.32 1.33 60 0 1.26 2.21 205 245 290 340 390 450 1.33 1.33 75 0 1.75 3.07 177 217 262 312 362 422 47 562 662 762 62 92 1112 1262 143 163 1.33 1.34 71 95 1.57 2.74 14 224 269 319 369 429 494 569 670 770 70 990 1120 1270 1445 1645 1.34 1.34 56 75 1.0 1.6 212 252 297 347 397 457 1.34 1.34 67 90 1.39 2.41 191 231 276 326 377 437 502 577 677 777 77 997 1127 1277 1452 1652 1.34 1.35 63 5 1.21 2.07 19 239 24 334 34 444 509 54 64 74 4 04 14 124 1459 1659 1.35 1.39 90 125 2.44 4.34 145 15 230 21 331 391 456 531 631 731 31 951 1 1231 1406 1606 1.39 1.40 0 112 2.00 3.53 163 204 249 299 349 409 474 549 649 749 49 969 99 1249 1424 1624 1.40 1.40 0 140 2. 5.12 165 211 261 311 371 436 511 611 711 11 931 61 1211 6 156 1.40 1.41 71 0 1.60 2.0 10 220 265 315 365 425 490 566 666 766 66 96 1116 1266 1441 1641 1.41 1.42 60 5 1.29 2.26 201 241 26 336 36 446 1.42 1.42 67 95 1.42 2.46 17 227 272 322 373 433 49 573 673 773 73 993 1123 1273 144 164 1.42 1.43 56 0 1.11 1.92 20 24 293 343 393 453 1.43 1.43 63 90 1.24 2. 194 234 20 330 30 440 505 50 60 70 0 00 10 120 1455 1655 1.43 1.43 112 160 3.39 6.04 15 235 25 346 411 46 56 66 76 906 36 116 61 1561 1.43 Pitch diameters in italic type indicates drives where the use of CRE PLUS or Quattro PLUS belts are recommended. The above drives are based on the ISO belt length designations, other belt lengths and pulley combinations are available - consult your local Authorised Distributor. All dimensions in millimetres. Ratio

friction belt drives Centre Distance SPZ, XPZ & QXPZ Wedge Belt Drives Combined Arc and Belt Length Correction Factor Ratio Pitch Diameter of Pulleys Driver Driven Power per SPZ Belt (kw) 1440 rev/min 20 rev/min 0.0 0.5 0.90 0.95 1.00 1.05 1. 1.15 BELT LENGTH SPZ & QXPZ ONLY 630 7 00 900 00 1120 1250 1400 1600 100 2000 2240 2500 200 3150 3550 1.43 140 200 4.57.0 231 291 357 432 532 632 732 52 93 13 0 150 1.43 1.44 125 10 3.95 7.01 209 259 319 34 460 560 660 760 0 1160 35 1535 1.44 1.47 5 125 2.22 3.94 149 19 234 24 334 395 460 535 635 735 35 955 5 1235 14 16 1.47 1.47 95 140 2.66 4.73 169 214 264 315 375 440 515 615 715 15 935 65 1215 90 1590 1.47 1.49 67 0 1.42 2.46 13 223 26 31 36 429 494 569 669 769 69 969 1119 1269 1444 1644 1.49 1.49 75 112 1.7 3. 167 207 252 303 353 4 47 553 653 753 53 973 1253 142 162 1.49 1.50 60 90 1.29 2.26 197 237 22 332 32 442 1.50 1.51 63 95 1.24 2. 190 230 275 326 376 436 501 576 676 776 76 996 1126 1276 1451 1651 1.51 1.52 56 5 1.11 1.92 204 244 29 339 39 449 1.52 1.56 90 140 2.44 4.34 173 21 26 31 379 444 519 619 719 19 939 69 1219 94 1594 1.56 1.56 0 125 2.00 3.53 152 193 23 2 33 39 463 539 639 739 39 959 9 1239 1414 1614 1.56 1.5 71 112 1.62 2.4 170 2 255 306 356 416 41 556 656 756 56 976 16 1256 1431 1631 1.5 1.5 60 95 1.31 2.30 192 233 27 32 37 43 1.5 1.59 63 0 1.26 2.17 16 226 271 321 372 432 497 572 672 772 72 992 1122 1272 1447 1647 1.59 1.60 0 160 2.90 5.17 193 244 294 355 420 495 595 695 795 915 45 1195 70 1571 1.60 1.60 125 200 3.97 7.05 191 242 302 36 443 543 644 744 64 994 1144 19 1519 1.60 1.61 56 90 1. 1.96 200 240 25 335 35 445 1.61 1.61 112 10 3.42 6.09 167 21 269 329 394 469 570 670 770 90 20 1170 45 1545 1.61 1.65 5 140 2.24 3.9 5 176 222 272 322 32 447 523 623 723 23 943 73 1223 9 159 1.65 1.67 60 0 1.31 2.30 1 22 274 324 374 434 1.67 1.67 75 125 1.0 3.17 156 196 242 292 342 402 467 542 642 742 43 963 93 1243 141 161 1.67 1.67 67 112 1.44 2.51 173 2 25 309 359 419 44 559 659 759 59 979 19 1259 1434 1634 1.67 1.6 95 160 2.6 4.7 151 197 24 29 35 423 499 599 699 799 919 49 1199 74 1574 1.6 1.70 56 95 1. 1.96 195 236 21 331 31 441 1.70 1.75 0 140 2.02 3.5 9 10 225 276 326 36 451 526 626 727 27 947 77 1227 1402 1602 1.75 1.76 71 125 1.62 2.4 159 199 245 295 345 405 470 545 645 746 46 966 96 1246 1421 1621 1.76 1.7 63 112 1.26 2.17 176 216 261 312 362 422 47 562 662 762 62 92 1112 1262 1437 1637 1.7 1.7 90 160 2.46 4.3 155 201 251 302 362 427 502 603 703 03 923 53 1203 7 157 1.7 1.79 56 0 1. 1.96 191 231 277 327 377 437 1.79 1.79 112 200 3.42 6.09 200 251 312 377 453 563 653 754 74 04 1154 29 1529 1.79 1.79 140 250 4.60.12 24 314 390 491 591 692 12 942 92 126 146 1.79 1.0 0 10 2.90 5.17 176 227 277 33 403 47 579 679 779 99 29 1179 54 1555 1.0 1.7 67 125 1.44 2.51 162 202 24 29 34 40 473 54 649 749 49 969 99 1249 1424 1624 1.7 1.7 60 112 1.31 2.30 17 21 264 314 364 424 1.7 1.7 75 140 1.0 3.17 142 13 229 279 330 390 455 530 630 730 31 951 1 1231 1406 1606 1.7 1. 5 160 2.24 3.9 15 204 255 305 366 431 506 606 707 07 927 57 1207 2 152 1. 1.9 95 10 2.6 4.7 179 230 21 341 407 42 52 63 73 903 33 113 5 155 1.9 1.97 71 140 1.64 2. 145 16 232 22 332 393 45 533 633 733 34 954 4 1234 1409 1609 1.97 1.9 63 125 1.2 2.21 164 205 250 301 351 411 476 551 652 752 52 972 12 1252 1427 1627 1.9 2.00 56 112 1.15 2.00 11 221 267 317 367 427 2.00 2.00 0 160 2.04 3.61 162 20 25 309 369 435 5 6 7 11 931 61 1211 6 156 2.00 2.00 90 10 2.4 4.42 12 234 24 345 4 46 56 66 77 907 37 117 62 1562 2.00 2.00 0 200 2.92 5.20 20 260 320 36 462 562 662 763 3 1163 3 1539 2.00 2.00 125 250 3.99 7.09 25 324 401 502 602 703 23 953 14 1279 1479 2.00 2.0 60 125 1.33 2.34 167 207 253 303 353 4 2.0 2.09 67 140 1.46 2.54 14 19 235 25 335 396 461 536 636 737 37 957 7 1237 1412 1612 2.09 2.11 95 200 2.70 4.1 212 263 324 390 465 566 666 767 7 17 1167 42 1542 2.11 2.12 5 10 2.26 4.02 16 237 2 349 414 490 590 690 790 911 41 1191 66 1566 2.12 2. 75 160 1.2 3.21 165 211 262 3 373 43 514 614 714 14 934 65 1215 90 1590 2. 2.22 63 140 1.2 2.21 151 192 237 2 33 399 464 539 639 740 40 960 90 1240 1415 1615 2.22 2.22 90 200 2.4 4.42 215 267 32 393 469 570 670 770 91 21 1171 46 1546 2.22 2.23 56 125 1.15 2.00 169 2 256 306 356 416 2.23 2.23 112 250 3.43 6.12 204 267 334 4 511 612 712 33 963 1114 129 149 2.23 2.25 0 10 2.04 3.61 19 241 292 352 41 493 594 694 794 914 45 1195 70 1570 2.25 2.25 140 315 4.61.16 252 331 434 535 637 75 39 1214 1415 2.25 2.25 71 160 1.64 2. 16 214 265 315 376 441 517 617 717 17 93 6 121 93 1593 2.25 2.33 60 140 1.33 2.34 153 194 240 290 341 401 2.33 2.35 5 200 2.26 4.02 166 219 270 331 397 473 573 674 774 94 25 1175 50 1550 2.35 2.39 67 160 1.46 2.54 170 217 26 31 379 444 520 620 720 20 941 71 1221 96 1596 2.39 2.40 75 10 1.2 3.21 193 244 295 356 421 497 597 69 79 91 4 1199 74 1574 2.40 2.50 56 140 1.15 2.00 155 197 242 293 343 404 2.50 2.50 0 200 2.04 3.61 169 222 274 335 401 476 577 677 77 9 2 1179 54 1554 2.50 2.50 0 250 2.92 5.20 212 275 342 41 520 621 721 42 972 1123 129 149 2.50 2.52 125 315 3.99 7.09 262 341 444 546 647 769 99 50 1226 1426 2.52 2.54 71 10 1.64 2. 14 195 247 29 359 424 500 600 701 01 921 51 1202 77 1577 2.54 2.54 63 160 1.2 2.21 173 219 271 321 32 447 523 623 723 23 944 74 1224 99 1599 2.54 2.63 95 250 2.70 4.1 215 27 345 422 523 624 725 45 976 1126 02 1502 2.63 2.67 60 160 1.33 2.34 3 175 222 273 323 34 2.67 2.67 75 200 1.2 3.21 173 225 277 33 404 40 51 61 72 902 32 112 5 155 2.67 2.69 67 10 1.46 2.54 150 19 250 301 362 427 503 603 704 04 924 54 1205 0 150 2.69 2.7 90 250 2.4 4.42 21 22 349 425 527 62 729 49 90 10 06 1506 2.7 2.1 112 315 3.43 6.12 271 350 453 555 657 77 909 60 1235 1436 2.1 2.2 71 200 1.64 2. 175 22 20 341 407 43 54 64 75 905 35 115 61 1561 2.2 2.6 56 160 1.15 2.00 5 17 224 275 326 37 2.6 2.6 63 10 1.2 2.21 153 201 252 304 364 430 506 606 707 07 927 5 120 3 153 2.6 Pitch diameters in italic type indicates drives where the use of CRE PLUS or Quattro PLUS belts are recommended. The above drives are based on the ISO belt length designations, other belt lengths and pulley combinations are available - consult your local Authorised Distributor. All dimensions in millimetres. Ratio FEN01/14 : Drive Design & Maintenance Manual 41

FRICTION BELT drives Centre Distance SPZ, XPZ & QXPZ Wedge Belt Drives Combined Arc and Belt Length Correction Factor Ratio Pitch Diameter of Pulleys Driver Driven Power per SPZ Belt (kw) 1440 rev/min 20 rev/min 0.75 0.0 0.5 0.90 0.95 1.00 1.05 1. 1.15 BELT LENGTH 630 7 00 900 00 1120 1250 1400 1600 100 2000 2240 2500 200 3150 3550 2.6 140 400 4.61.16 352 457 561 64 16 967 1143 45 2.6 2.94 5 250 2.26 4.02 222 25 352 429 530 632 732 53 93 14 09 15 2.94 2.99 67 200 1.46 2.54 17 231 22 344 4 46 57 67 77 90 3 11 64 1564 2.99 3.00 60 10 1.33 2.34 155 203 254 306 367...... 3.00 3. 0 250 2.04 3.61 225 2 356 432 534 635 736 57 97 1 15 3. 3.15 0 315 2.92 5.20 27 35 462 564 665 77 91 69 1244 1445 3.15 3.17 63 200 1.2 2.21 10 233 25 347 4 49 59 690 790 911 41 1191 67 1567 3.17 3.20 125 400 3.99 7.09 362 467 571 694 26 97 1154 56 3.20 3.21 56 10 1.15 2.00 157 205 257 30 369...... 3.21 3.32 95 315 2.70 4.1 21 361 465 567 669 790 921 72 124 1449 3.32 3.33 60 200 1.33 2.34 12 235 27 349...... 3.33 3.33 75 250 1.2 3.21 22 292 359 436 53 639 740 60 991 1141 17 1517 3.33 3.50 90 315 2.49 4.44 25 365 46 571 673 794 925 76 1252 1453 3.50 3.52 71 250 1.65 2.90 231 294 362 439 540 642 742 63 994 1144 20 1520 3.52 3.57 56 200 1.16 2.02 15 23 290 352...... 3.57 3.57 112 400 3.45 6.15 370 476 50 703 35 97 1164 65 3.57 3.71 5 315 2.27 4.04 2 36 472 574 676 79 929 0 1256 1456 3.71 3.73 67 250 1.47 2.57 233 297 365 442 543 645 745 66 997 1147 23 1523 3.73 3.94 0 315 2.05 3.64 21 291 371 475 57 60 01 932 3 1259 1460 3.94 3.97 63 250 1.29 2.23 10 236 300 367 444 546 647 74 69 00 1150 26 1526 3.97 4.00 0 400 2.93 5.23 377 44 5 711 44 996 1173 74 4.00 4.17 60 250 1.34 2.36 12 23 302...... 4.17 4.20 75 315 1.3 3.23 221 294 374 479 51 63 05 936 7 1263 1464 4.20 4.21 95 400 2.71 4.4 26 31 47 592 715 4 00 1176 7 4.21 4.44 71 315 1.65 2.90 224 297 377 41 54 66 0 939 90 1266 1467 4.44 4.44 90 400 2.49 4.44 271 34 491 595 71 51 03 110 1 4.44 4.46 56 250 1.16 2.02 14 240 304...... 4.46 4.70 67 315 1.47 2.57 226 299 30 44 57 69 942 93 1269 1470 4.70 4.71 5 400 2.27 4.04 274 37 494 59 722 55 07 114 5 4.71 5.00 63 315 1.29 2.23 22 302 32 47 590 692 945 96 1272 1473 5.00 5.00 0 400 2.05 3.64 277 390 497 602 725 5 117 9 5.00 5.33 75 400 1.3 3.23 20 393 501 605 729 62 14 1191 92 5.33 5.63 71 400 1.65 2.90 22 396 503 60 732 64 17 1194 95 5.63 5.97 67 400 1.47 2.57 24 39 506 611 734 67 20 1197 9 5.97 Pitch diameters in italic type indicates drives where the use of CRE PLUS or Quattro PLUS belts are recommended. The above drives are based on the ISO belt length designations, other belt lengths and pulley combinations are available - consult your local Authorised Distributor. All dimensions in millimetres. SPZ & QXPZ ONLY Ratio 42

friction belt drives Centre Distance SPA, XPA & QXPA Wedge Belt Drives Combined Arc and Belt Length Correction Factor Ratio Pitch Diameter of Pulleys Driver Driven Power per SPA Belt (kw) 1440 rev/min 20 rev/min 0.0 0.5 0.90 0.95 1.00 1.05 1. BELT LENGTH SPA, QXPA ONLY SPA ONLY 00 900 00 1120 1250 1400 1600 100 2000 2240 2500 200 3150 3550 4000 4500 1.00 0 0 2.04 3.29 274 324 374 434 499 574 674 1.00 1.00 5 5 2.43 4.00 266 316 366 426 491 566 666 1.00 1.00 90 90 2.29 3.65 259 309 359 419 44 559 659 759 59 979 19 1259 1434 1634 159 29 1.00 1.00 95 95 2.6 4.35 251 301 351 411 476 551 651 751 51 971 11 1251 1426 1626 151 21 1.00 1.00 0 0 3.06 5.04 243 293 343 403 46 543 643 743 43 963 93 1243 141 161 143 2093 1.00 1.00 6 6 3.52 5.5 233 23 333 393 45 533 633 733 33 953 3 1233 140 160 133 203 1.00 1.00 112 112 3.9 6.66 224 274 324 34 449 524 624 724 24 944 74 1224 99 1599 124 2074 1.00 1.00 11 11 4.43 7.45 215 265 315 375 440 515 615 715 15 935 65 1215 90 1590 115 2065 1.00 1.00 125 125 4.95.36 204 254 304 364 429 504 604 704 04 924 54 1204 79 1579 104 2054 1.00 1.00 2 2 5.47 9.26 193 243 293 353 41 493 593 693 793 9 43 1193 6 156 1793 2043 1.00 1.00 140 140 6.06.25 10 230 20 340 405 40 50 60 70 900 30 110 55 1555 170 2030 1.00 1.00 150 150 6.79 11.47 214 264 324 39 464 564 664 764 4 14 1164 39 1539 1764 2014 1.00 1.00 160 160 7.51 12.65 199 249 309 374 449 549 649 749 69 999 1149 24 1524 1749 1999 1.00 1.00 10 10.93 14.9 217 277 342 417 517 617 717 37 967 1117 1292 1492 1717 1967 1.00 1.00 200 200.31 16.95 246 311 36 46 56 66 06 936 6 1261 1461 166 1936 1.00 1.05 95 0 2.73 4.45 247 297 347 407 472 547 647 747 47 967 97 1247 1422 1622 147 2097 1.05 1.05 112 11 4.03 6.76 219 269 319 379 444 519 619 719 19 939 69 1219 94 1594 119 2069 1.05 1.06 90 95 2.43 3.92 255 305 355 415 40 555 655 755 55 975 15 1255 1430 1630 155 25 1.06 1.06 125 2 5.09.63 19 24 29 35 423 49 59 69 79 91 4 119 73 1573 179 204 1.06 1.06 6 112 3.66 6. 229 279 329 39 454 529 629 729 29 949 79 1229 1404 1604 129 2079 1.06 1.06 5 90 2.57 4.27 263 3 363 423 4 563 663 1.06 1.06 11 125 4.56 7.72 209 259 309 369 434 509 609 709 09 929 59 1209 4 154 109 2059 1.06 1.06 0 6 3.20 5.31 23 2 33 39 463 53 63 73 3 95 123 14 16 13 20 1.06 1.06 2 140 5.60 9.53 16 236 26 346 411 46 56 66 76 906 36 116 61 1561 176 2036 1.06 1.06 0 5 2.1 3.56 270 320 370 430 495 570 670 1.06 1.07 150 160 6.92 11.74 206 256 316 31 456 557 657 757 77 07 1157 32 1532 1757 2007 1.07 1.07 140 150 6.19.53 172 222 272 332 397 472 572 672 772 2 22 1172 47 1547 1772 2022 1.07 1.11 90 0 2.43 3.92 251 301 351 411 476 551 651 751 51 971 11 1251 1426 1626 151 21 1.11 1.11 10 200 9.06 15.17 261 326 401 501 601 701 21 951 12 1277 1477 1702 1952 1.11 1.11 6 11 3.66 6. 224 274 324 34 449 524 624 724 24 944 74 1224 99 1599 124 2074 1.11 1.12 95 6 2.92 4.2 242 292 342 402 467 542 642 742 42 962 92 1242 1417 1617 142 2092 1.12 1.12 112 125 4.21 7. 214 264 314 374 439 514 614 714 14 934 64 1214 9 159 114 2064 1.12 1.12 5 95 2.67 4.47 259 309 359 419 44 559 659 1.12 1.12 11 2 4.66 7.93 204 254 304 364 429 504 604 704 04 924 54 1204 79 1579 104 2054 1.12 1.12 0 112 3.30 5.51 233 23 333 393 45 533 633 733 33 953 3 1233 140 160 133 203 1.12 1.12 125 140 5.19.4 192 242 292 352 417 492 592 692 792 912 42 1192 67 1567 1792 2042 1.12 1.12 200 224.55 17.42 292 367 467 567 667 77 917 67 1242 1442 1667 1917 1.12 1. 0 90 2.2 3.76 266 316 366 426 491 566 666 1. 1. 160 10 7.74.12 233 293 35 433 533 633 733 53 93 13 0 150 1733 193 1. 1.14 2 150 5.71 9.73 17 22 27 33 403 47 57 67 77 9 2 117 53 1553 177 202 1.14 1.14 140 160 6.29.73-214 264 324 39 464 564 664 764 4 14 1164 39 59 1764 2014 1.14 1.1 5 0 2.67 4.47 255 305 355 415 40 555 655 1.1 1.1 90 6 2.53 4.12 246 296 346 406 471 546 646 746 46 966 96 1246 1421 1621 146 2096 1.1 1.1 112 2 4.21 7. 20 25 30 36 433 50 60 70 0 92 5 120 3 153 10 205 1.1 1.1 95 112 2.92 4.2 237 27 337 397 462 537 637 737 37 957 7 1237 1412 1612 137 207 1.1 1.1 6 125 3.76 6.33 21 26 31 37 443 51 61 719 19 939 69 1219 94 1594 119 2069 1.1 1.1 0 11 3.39 5.6 229 279 329 39 454 529 629 729 29 949 79 1229 1404 1604 129 2079 1.1 1.19 11 140 4.75. 197 247 297 357 422 497 597 697 797 917 47 1197 72 1572 1797 2047 1.19 1.19 0 95 2.37 3.93 262 312 362 422 47 563 663 1.19 1.20 125 150 5.27 9.01 14 234 24 344 409 44 54 64 74 904 34 114 59 1559 174 2034 1.20 1.20 150 10 7.11 12.12 190 240 300 366 441 541 641 741 61 991 1141 16 1516 1741 1991 1.20 1.21 2 160 5.79 9.90 170 220 270 330 395 470 570 671 771 91 21 1171 46 1546 1771 2021 1.20 1.24 95 11 3.00 4.99 232 22 333 393 45 533 633 733 33 953 3 1233 140 160 133 203 1.24 1.24 90 112 2.62 4.29 241 291 341 401 466 541 641 741 41 961 91 1241 1416 1616 141 2091 1.24 1.24 10 224 9.25 15.53 242 307 32 42 52 62 02 932 2 125 145 163 1933 1.24 1.25 6 2 3.4 6.50 2 263 3 373 43 5 6 7 933 63 12 15 1 2063 1.25 1.25 5 6 2.76 4.65 250 300 350 4 475 550 650 1.25 1.25 0 0 2.37 3.93 25 30 35 419 44 559 659 1.25 1.25 0 125 3.39 5.69 223 273 323 33 44 523 623 723 23 943 73 1223 9 159 123 2073 1.25 1.25 112 140 4.30 7.30 202 252 302 362 427 502 602 702 02 922 52 1202 77 1577 102 2052 1.25 1.25 160 200 7.3.29 216 277 342 417 517 617 717 37 967 1117 1292 1492 1717 1967 1.25 1.25 200 250.63 17.60 270 346 446 546 646 766 96 46 1221 1421 1646 196 1.25 1.27 11 150 4.2.23 19 239 29 349 414 49 59 69 79 909 39 119 64 1564 179 2039 1.27 1.2 125 160 5.34 9.14 175 225 276 336 401 476 576 676 776 96 26 1176 51 1551 1776 2026 1.2 1.29 140 10 6.45 11.04 19 24 30 373 44 54 64 74 6 99 114 24 1524 1749 1999 1.29 1.31 90 11 2.6 4.43 236 26 336 396 461 536 636 737 37 957 7 1237 1412 1612 137 207 1.31 1.32 95 125 3.07 5. 227 277 327 37 452 527 627 727 27 947 77 1227 1402 1602 127 2077 1.32 1.32 5 112 2.2 4.7 245 295 345 405 470 545 645 1.32 1.32 0 2 3.45 5.2 217 267 317 377 442 51 61 71 1 93 6 121 93 1593 11 206 1.32 1.32 6 140 3.91 6.63 206 256 306 366 431 507 607 707 07 927 57 1207 2 152 107 2057 1.32 1.32 0 6 2.43 4.07 254 304 354 414 479 554 654 1.32 1.33 150 200 7.1 12.25 224 24 349 424 525 625 725 45 975 1125 00 1500 1725 1975 1.33 1.34 112 150 4.37 7.44 193 243 294 354 419 494 594 694 794 914 44 1194 69 1569 1794 2044 1.34 1.36 11 160 4.2.23 10 231 21 341 406 41 51 61 71 901 31 111 56 1557 172 2032 1.36 1.36 2 10 5.6.04 204 254 314 379 454 554 655 755 75 05 1155 30 1530 1755 2005 1.36 Pitch diameters in italic type indicates drives where the use of CRE PLUS or Quattro PLUS belts are recommended. The above drives are based on the ISO belt length designations, other belt lengths and pulley combinations are available - consult your local Authorised Distributor. All dimensions in millimetres. Ratio FEN01/14 : Drive Design & Maintenance Manual 43

FRICTION BELT drives Centre Distance SPA, XPA & QXPA Wedge Belt Drives Combined Arc and Belt Length Correction Factor Ratio Pitch Diameter of Pulleys Driver Driven Power per SPA Belt (kw) 1440 rev/min 20 rev/min 0.0 0.5 0.90 0.95 1.00 1.05 1. BELT LENGTH SPA & QXPA ONLY SPA ONLY 00 900 00 1120 1250 1400 1600 100 2000 2240 2500 200 3150 3550 4000 4500 1.39 5 11 2.9 4.92 240 290 340 400 465 540 640 1.39 1.39 90 125 2.75 4.56 230 21 331 391 456 531 631 731 31 951 1 1231 1406 1606 131 201 1.39 1.39 10 250 9.3 15.0 25 361 461 561 661 71 912 62 1237 1437 1662 1912 1.39 1.39 95 2 3.14 5.26 221 271 321 31 446 521 621 721 22 942 72 1222 97 1597 122 2072 1.39 1.40 0 112 2.50 4.20 249 299 349 409 474 549 649 1.40 1.40 0 140 3.52 5.95 211 261 311 371 436 511 611 711 11 931 61 1211 6 156 111 2061 1.40 1.40 160 224 7.96.56 256 322 397 497 59 69 1 94 9 1273 1473 169 194 1.40 1.40 200 20.77 17.7 321 421 521 622 742 72 22 1197 97 1623 173 1.40 1.42 6 150 3.9 6.77 19 24 29 35 423 49 599 699 799 919 49 1199 74 1574 1799 2049 1.42 1.43 112 160 4.43 7.57 15 235 25 346 411 46 56 66 76 906 36 116 61 1561 176 2036 1.43 1.43 140 200 6.51 11.17 231 291 357 432 532 632 732 52 93 13 0 150 1733 193 1.43 1.44 125 10 5.41 9.2 209 259 319 34 460 560 660 760 0 1160 35 1535 1760 20 1.44 1.47 90 2 2.75 4.56 225 275 325 35 450 525 625 725 25 945 75 1225 1400 1601 126 2076 1.47 1.47 5 125 2.9 4.92 234 24 334 395 460 535 635 1.47 1.47 95 140 3.14 5.26 214 264 315 375 440 515 615 715 15 935 65 1215 90 1590 115 2065 1.47 1.47 0 11 2.50 4.20 244 294 344 404 469 544 644 1.47 1.49 150 224 7.24 12.39 - - - 264 329 405 505 605 705 25 956 16 121 141 1706 1956 1.49 1.50 0 150 3.52 5.95 202 252 303 363 42 503 603 703 03 923 53 1203 7 157 103 2053 1.50 1.51 6 160 3.9 6.77 19 240 290 350 415 490 590 691 791 911 41 1191 66 1566 1791 2041 1.51 1.52 2 200 5.93.17 16 237 297 363 43 53 63 73 59 99 19 14 1514 1739 199 1.52 1.53 11 10 4..37 214 264 324 390 465 565 665 765 5 15 1166 41 1541 1766 2016 1.53 1.55 5 2 2.9 4.92 22 279 329 39 454 529 629 1.55 1.56 90 140 2.75 4.56 21 26 31 379 444 519 619 719 19 939 69 1219 94 1594 119 2069 1.56 1.56 10 20 9.3 15.0 259 335 436 536 637 757 7 3 12 14 163 1 1.56 1.56 0 125 2.50 4.20 23 2 33 39 463 539 639 1.56 1.56 160 250 7.96.56 234 300 375 476 576 676 797 927 77 1252 1452 1677 1927 1.56 1.57 200 315.7 17.9 290 391 492 593 7 44 994 1169 69 1594 145 1.57 1.5 95 150 3.19 5.3 206 256 306 367 432 507 607 707 07 927 57 1207 2 152 107 2057 1.5 1.60 0 160 3.5 6.07 193 244 294 355 420 495 595 695 795 915 45 1195 70 1571 1796 2046 1.60 1.60 125 200 5.46 9.39 191 242 302 36 443 543 644 744 64 994 1144 19 1519 1744 1994 1.60 1.60 140 224 6.57 11.2 2 271 336 412 512 6 7 33 963 11 12 149 1714 1964 1.60 1.61 112 10 4.49 7.69 167 21 269 329 394 469 570 670 770 90 20 1170 45 1545 1770 2020 1.61 1.65 5 140 2.95 5.03 222 272 322 32 447 523 623 1.65 1.65 0 2 2.56 4.32 232 22 332 393 45 533 633 1.65 1.67 90 150 2.1 4.6 209 260 3 370 435 511 611 711 11 931 61 1211 6 156 111 2061 1.67 1.67 150 250 7.30 12.50 241 307 33 43 54 64 04 935 5 1260 1460 165 1935 1.67 1.6 95 160 3.19 5.3 197 24 29 35 423 499 599 699 799 919 49 1199 74 1574 1799 2049 1.6 1.69 11 200 4.94.4 196 247 30 373 44 549 649 749 69 999 1150 25 1525 1750 2000 1.69 1.70 2 224 5.9.2 215 277 342 41 51 619 719 39 969 1119 1295 1495 1720 1970 1.70 1.70 6 10 4.04 6. 171 222 273 333 399 474 574 674 774 95 25 1175 50 1550 1775 2025 1.70 1.75 0 140 2.56 4.32 225 276 326 36 451 526 626 1.75 1.75 160 20.02.6 273 349 450 551 652 772 902 53 122 142 1653 1903 1.75 1.75 10 315 9.44 15.91 304 406 507 607 72 59 09 114 5 16 160 1.75 1.76 5 150 2.95 5.03 2 263 314 374 439 514 615 1.76 1.7 90 160 2.1 4.6 201 251 302 362 427 502 603 703 03 923 53 1203 7 157 103 2053 1.7 1.79 112 200 4.49 7.69 200 251 312 377 453 553 653 754 74 04 1154 29 1529 1754 2004 1.79 1.79 140 250 6.57 11.2 24 314 390 491 591 692 12 942 92 126 146 1693 1943 1.79 1.79 125 224 5.46 9.39 220 22 347 423 524 624 724 44 975 1125 00 1500 1725 1975 1.79 1.0 0 10 3.5 6.07 176 227 277 33 403 47 579 679 779 99 29 1179 54 1555 170 2030 1.0 1.7 150 20 7.30 12.50 20 356 45 55 659 70 9 60 1236 1436 1661 1911 1.7 1. 0 150 2.56 4.32 217 267 317 37 443 51 61 1. 1. 5 160 2.95 5.03 204 255 305 366 431 506 606 1. 1.9 6 200 4.04 6. 204 255 316 32 457 55 65 75 7 09 1159 34 1534 1759 2009 1.9 1.9 2 250 5.9.2 253 320 396 496 597 697 1 94 9 1274 1474 1699 1949 1.9 1.9 95 10 3.19 5.3 179 230 21 341 407 42 52 63 73 903 33 113 5 155 174 2034 1.9 1.90 11 224 4.94.4 225 26 352 42 529 629 729 50 90 10 05 1505 1731 191 1.90 1.97 160 315.07.77 317 420 521 622 743 73 24 1199 1400 1625 175 1.97 2.00 0 160 2.60 4.41 20 25 309 369 435 5 6 2.00 2.00 90 10 2.5 4.77 12 234 24 345 4 46 56 66 77 907 37 117 62 1562 177 2037 2.00 2.00 0 200 3.62 6.16 20 260 320 36 462 562 662 763 3 1163 3 1539 1764 2014 2.00 2.00 112 224 4.54 7.7 229 291 357 432 533 634 734 54 95 15 15 1735 195 2.00 2.00 125 250 5.51 9.4 25 324 401 502 602 703 23 953 14 1279 1479 1704 1954 2.00 2.00 140 20 6.62 11.3 27 363 465 566 666 77 917 6 1243 1443 1669 1919 2.00 2.00 200 400.7 1.07 417 519 641 772 923 99 00 1525 1776 2.00 2. 150 315 7.35 12.59 324 427 52 629 750 1 31 1207 1407 1633 13 2. 2.11 95 200 3.24 5.47 212 263 324 390 465 566 666 767 7 17 1167 42 1542 176 201 2.11 2.11 6 224 4.0 6.97 233 295 361 437 53 63 73 59 99 19 14 1515 1740 1990 2.11 2.12 5 10 2.99 5.12 16 237 2 349 414 490 590 2.12 2.12 11 250 4.99.57 263 329 406 507 607 70 2 959 19 124 145 17 1960 2.12 2.12 2 20 6.03.3 292 369 471 572 672 793 923 74 1249 1450 1675 1925 2.12 2.22 90 200 2.5 4.77 215 267 32 393 469 570 670 770 91 21 1171 46 1546 1771 2021 2.22 2.22 10 400 9.49 16.01 326 430 533 655 77 93 1114 15 1541 1791 2.22 2.23 112 250 4.54 7.7 204 267 334 4 511 612 712 33 963 1114 129 149 1714 1964 2.23 2.24 0 224 3.62 6.16 15 237 299 365 441 542 643 743 63 994 1144 19 1519 1744 1995 2.24 2.24 125 20 5.51 9.4 229 297 374 476 577 677 79 929 79 1255 1455 160 1930 2.24 Pitch diameters in italic type indicates drives where the use of CRE PLUS or Quattro PLUS belts are recommended. The above drives are based on the ISO belt length designations, other belt lengths and pulley combinations are available - consult your local Authorised Distributor. All dimensions in millimetres. Ratio 44